WO2020228200A1

WO2020228200A1 - Force-driven handrail belt apparatus

Info

Publication number: WO2020228200A1
Application number: PCT/CN2019/105363
Authority: WO
Inventors: 朱学明
Original assignee: 苏州汉森电梯有限公司
Priority date: 2019-05-10
Filing date: 2019-09-11
Publication date: 2020-11-19
Also published as: JP2022533273A; KR20220005095A; EP3967643A4; CN109969916A; EP3967643A1; CA3138971A1

Abstract

A force-driven handrail belt apparatus, comprising a handrail belt (1) and a drive wheel (2): the handrail belt (1) has a contact surface that is in contact with the drive wheel (2); a plurality of force-driven grooves (3) are evenly provided at the center position of the contact surface along the length direction thereof; a plurality of force-driven gears (4) are evenly distributed on the outer edge of the drive wheel (2); and the force-driven gears (4) of the drive wheel (2) are embedded into the force-driven grooves (3) on the contact surface of the handrail belt (1) to achieve the forced driving of the handrail belt (1).

Description

Force-driven handrail belt device

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 201910389464.9, and the invention title is "A Forced Driven Handrail Device" on May 10, 2019, the entire content of which is incorporated into this application by reference in.

Technical field

The invention relates to the technical field of escalators or moving sidewalks, and in particular to a forced drive type handrail device.

Background technique

With the rapid development of society, escalators and moving sidewalk equipment have become essential vehicles for major commercial centers and transportation hubs in cities. Especially in recent years, related accidents have frequently occurred and have often become the focus of social attention.

At present, escalator handrail belts are mostly driven by friction wheels, and the contact surface between the handrail belt and the driving device is flat (the handrail belt is a C-shaped handrail belt) or V-shaped plane (the handrail belt is a V-shaped handrail belt), see Figures 1 to 2 As shown, it has a fatal shortcoming that cannot guarantee the synchronization and stability of the drive. Because the friction drive is affected by factors such as friction coefficient, positive pressure and the tension of the handrail belt, the stability of the transmission is poor, especially with the changes in the external temperature, humidity, handrail tension, and wear conditions, the transmission Stability is greatly affected, running blocking, slipping, etc. often occur, resulting in instantaneous deviations between the running speed of the handrail and the running speed of the steps or the running speed of the left and right handrails.

According to the passenger principle of escalators and moving walks, if the operation of the handrails is not synchronized with the operation of the step pedals, it may cause the passengers to stand unstable and fall, and may cause fatal danger. In view of this, various countries, regions or alliances are automatically The safety specifications for the installation and manufacturing of escalators and moving walks clearly stipulate the deviation range of the running speed of the handrail relative to the running speed of the step pedals (0～+2%), and stipulate that escalators and moving walks must be equipped with handrail speed detection and control devices . If it is detected that the deviation between the running speed of the handrail and the running speed of the step pedal exceeds a certain range, the escalator and moving walk should stop running. The inspection and adjustment of handrails and handrail drive devices and handrail tension is an important part of the maintenance of escalators and moving walks. If the handrails or drive devices are seriously worn or adjusted incorrectly, escalators and moving walks are very likely to occur. Failure or safety incident.

In view of the above-mentioned problems, it is necessary to further optimize the structure of the current handrail belt to ensure the synchronous operation of the handrail belt and the step pedal.

Summary of the invention

In view of this, the object of the present invention is to provide a forced-driving handrail belt device, in which a forced-driving groove is provided on the handrail and matched with the driving wheel of the handrail corresponding to the forced-driving groove to realize the escalator, The handrail of the moving walkway runs synchronously with the step pedals.

In order to achieve the above objective, the technical solution adopted by the present invention is:

A forced-driving handrail belt device, comprising a handrail belt and a drive wheel, the handrail belt has a contact surface contacting the drive wheel, the center position of the contact surface is evenly provided with a plurality of parts along its length Forced drive groove body, a plurality of forced drive teeth are evenly distributed on the outer edge of the drive wheel, the forced drive teeth of the drive wheel are embedded in the forced drive groove on the contact surface of the handrail belt to realize the forced drive of the handrail belt .

Preferably, the contact surface of the handrail belt is a contact plane, and the forced driving groove body is uniformly opened along its length direction at the center position of the contact plane.

Preferably, the interior of the handrail belt is provided with a steel belt along its length, and the bottommost surface of the forced drive groove is lower than the bottommost surface of the steel belt of the handrail belt, that is, the forced drive groove body is penetrated It is set by the handrail belt steel belt.

Preferably, the contact surface of the handrail belt is a convex contact surface, the handrail belt is provided with a strip-shaped block, the surface of the strip-shaped block constitutes the contact convex surface, and the strip-shaped block The top surface of the body is evenly provided with the forced driving grooves along its length direction.

Preferably, a plurality of parallel steel wires are arranged inside the handrail belt along its length direction, and the bottommost surface of the forced drive trough is higher than the topmost surface of the handrail belt steel wires.

Preferably, the elongated block is a trapezoidal block, the compulsory drive groove body is arranged as a trapezoidal groove corresponding to the shape of the trapezoidal block, and the compulsory drive tooth of the drive wheel corresponds to the trapezoidal groove The body is set as a trapezoidal tooth piece.

Preferably, the spacing and shape between the forced driving grooves and the spacing and shape between the forced driving teeth are uniformly corresponding to each other.

Compared with the prior art, the forced drive handrail belt device provided by the present invention has the following advantages:

1. The transmission ratio is fixed, which is not affected by the environment and the degree of wear, and finally ensures the synchronization of the operation of the handrail belt and the operation of the step pedal.

2. Large driving force, providing sufficient driving force for the handrail, overcoming the frictional resistance generated during operation and the pulling force of the passenger's handrail, which can be used for the handrail driving scheme of super-high escalators and super-long moving walks.

3. High transmission efficiency, reducing energy loss of driving friction and heating.

4. It can reduce the positive pressure of the drive wheel of the handrail belt on the handrail belt, reduce the radial pressure of the drive wheel shaft and bearing, and extend the service life of the drive wheel and support bearing.

5. The driving method of this device is forced driving, which can reduce the tension of the handrail, reduce the frictional resistance when the handrail is running, reduce the frictional heating and wear between the handrail and the guide rail, and greatly extend the handrail and the handrail The service life of the belt guide rail, and at the same time, because most of the handrail belts are running, the radial pressure of the supporting rollers is reduced, the wear of the supporting rollers is reduced, and the service life of the supporting roller bearings is extended.

6. This structure can be installed on handrails of any specifications and models, as long as it has a contact surface that contacts the driving wheels, and has a wide range of applicability.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Figure 1 is a schematic diagram of the structure of a C-shaped handrail belt;

Figure 2 is a structural diagram of a V-shaped handrail belt;

3 is a schematic diagram of the handrail belt structure when the contact surface of the handrail belt is a contact plane in the forced drive type handrail belt device provided by the present invention;

4 is a schematic diagram of the structure of the handrail belt when the contact surface of the handrail belt is a convex contact surface in the forced drive type handrail belt device provided by the present invention;

Fig. 5 is a schematic structural diagram of a forced drive handrail device provided by the present invention.

Description of reference signs and components involved in the drawings:

1. Handrail belt; 2. Drive wheel; 3. Forced drive trough; 4. Forced drive gear; 5. Contact plane; 6. Steel belt; 7. Long block; 8. Steel wire.

Detailed ways

The currently used handrail belt has the disadvantage that it cannot guarantee the synchronization and stability of the drive. Because the friction drive is affected by factors such as friction coefficient, positive pressure and the tension of the handrail belt, the stability of the transmission is poor, especially with the changes in the external temperature, humidity, handrail tension, and wear conditions, the transmission Stability is greatly affected, running blocking, slipping, etc. often occur, resulting in instantaneous deviations between the running speed of the handrail and the running speed of the steps or the running speed of the left and right handrails.

In view of the above existing problems, the present invention further optimizes the structure of the current handrail belt to ensure the synchronous operation of the handrail belt and the step pedal.

The technical solutions of the present invention will be clearly and completely described below through specific implementations. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

A forced driving handrail belt device includes a handrail belt 1 and a driving wheel 2. The handrail belt 1 has a contact surface in contact with the driving wheel 2. A plurality of forced driving grooves 3 are evenly arranged along the length of the center of the contact surface, and a plurality of forced driving teeth 4 are evenly distributed on the outer edge of the driving wheel 2 . The spacing and shape between the forced driving grooves 3 and the spacing and shape between the forced driving teeth 4 are uniformly corresponding, so that the two can be in close contact and engagement. As shown in Fig. 5, the forced driving gear 4 of the driving wheel 2 is embedded in the forced driving groove 3 on the contact surface of the handrail belt 1, and the driving wheel 2 rotates and the forced driving gear 4 and the forced driving groove 3 cooperate to achieve Force the handrail 1 to run.

As shown in Fig. 3, the contact surface of the handrail belt 1 is a contact plane 5. In order to improve the strength of the handrail belt 1, the technicians consciously set a steel belt 6 inside the handrail belt 1 along its length.

The forced driving slot 3 is evenly opened along its length at the center of the contact plane 5, and the width of the forced driving slot 3 is greater than or equal to 1/2 of the width of the contact plane 5 and smaller than the width of the contact plane 5. And the bottom surface of the forced drive trough 3 is set lower than the bottom surface of the steel belt 6 of the handrail belt 1, that is, the forced drive trough 3 is installed through the handrail belt 1 and the steel belt 6, so that the steel belt 6 is provided to the handrail belt 1. It provides strength support, and on the other hand, it also provides strength support for the forced driving trough 3 to ensure that the driving force of the forced driving gear 4 can completely drive the handrail 1 to run.

In order to adapt to the handrail 1 of other specifications, corresponding structural deformation can also be made. As shown in Fig. 4, the contact surface of the handrail belt 1 is a convex contact surface. That is, a long block 7 is provided on the handrail belt 1, and the surface of the long block 7 constitutes a convex contact surface. Similarly, in order to improve the strength of the handrail belt 1, the technician sets a plurality of parallel steel wires 8 along the length of the handrail belt 1 inside. The top surface of the elongated block 7 is uniformly provided with a forced driving groove 3 along its length direction, and the bottom surface of the forced driving groove 3 is higher than the top surface of the steel wire 8 of the handrail belt 1. In order to facilitate processing, the width of the forced driving groove body 3 is set to be greater than or equal to 1/2 of the width of the elongated block 7 and smaller than the width of the elongated block 7.

In Fig. 4, the elongated block 7 preferably uses a trapezoidal block, the compulsory drive trough 3 and the shape of the trapezoidal block are set as trapezoidal troughs corresponding to the shape, and the compulsory drive tooth 4 of the drive wheel 2 is set as a trapezoidal tooth corresponding to the trapezoidal trough. .

When working, press the escalator start button to start the forced driving handrail belt device. The driving wheel 2 rotates under the drive of multiple front driving wheels. The forced driving gear 4 on the driving wheel 2 is embedded in the corresponding forced driving of the handrail 1 In the trough 3, the rotation of the driving wheel 2 drives the handrail 1 to move synchronously with the step pedal.

The invention provides a handrail belt with a brand-new structure and a driving wheel corresponding to the handrail belt. The combination of the two can completely overcome the shortcomings of the existing handrail belt structure and driving mode, and fundamentally ensure the synchronization of the handrail belt operation and the stepped pedal , To ensure the safety of passengers, reduce the wear of handrails and handrail driving wheels, improve drive efficiency, and achieve the purpose of saving energy and prolonging the service life of handrails, handrail driving devices, handrail guides, handrail support rollers and other related components.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this document, but should conform to the widest scope consistent with the principles and novel features disclosed in this document.

Claims

A forced-driving handrail belt device, which is characterized in that it comprises a handrail belt and a drive wheel, the handrail belt has a contact surface contacting the drive wheel, and the center of the contact surface is along its length direction. A plurality of forced driving grooves are evenly opened, a plurality of forced driving gears are evenly distributed on the outer edge of the driving wheel, and the forced driving gears of the driving wheel are embedded in the forced driving on the contact surface of the handrail belt The groove body realizes the forced driving of the handrail belt.
The forced drive handrail belt device according to claim 1, wherein the contact surface of the handrail belt is a contact plane, and the forced drive groove body is along its length at the center of the contact plane. Open evenly in the direction.
A forced drive type handrail belt device according to claim 2, characterized in that: the inside of the handrail belt is provided with a steel belt along its length, and the bottommost surface of the forced drive trough is lower than the handrail belt. The bottommost surface of the steel belt is set, that is, the forced driving groove body is set through the steel belt of the handrail belt.
The forced drive type handrail belt device according to claim 1, wherein the contact surface of the handrail belt is a convex contact surface, and a long block is provided on the handrail belt, and the long strip The surface of the block constitutes the contact convex surface, and the top surface of the elongated block is uniformly provided with the forced driving grooves along its length direction.
A forced drive type handrail belt device according to claim 4, characterized in that: the inside of the handrail belt is provided with a plurality of parallel steel wires along its length, and the bottom surface of the forced drive groove is higher than the The top surface of the steel wire of the handrail belt is set.
A forced drive handrail belt device according to claim 4, wherein the elongated block is a trapezoidal block, and the forced drive trough is formed as a trapezoidal groove corresponding to the shape of the trapezoidal block. The forced drive gear of the drive wheel is configured as a trapezoidal gear corresponding to the trapezoidal groove body.
The forced drive type handrail belt device according to claim 1, wherein the spacing and shape between the forced drive grooves and the spacing and shape between the forced drive teeth are uniformly corresponding to each other.